]> git.baikalelectronics.ru Git - kernel.git/commit
brcmfmac: disable command decode in sdio_aos
authorWright Feng <wright.feng@cypress.com>
Wed, 21 Nov 2018 07:53:52 +0000 (07:53 +0000)
committerKalle Valo <kvalo@codeaurora.org>
Thu, 13 Dec 2018 14:57:27 +0000 (16:57 +0200)
commitbf6bee224ad31d573381d393a39d6fa4f6d074dc
treee0b84900790c04b4ff2622ff9478356430090226
parent8cbd4ff6b5ede5415a59aac89aef4fb265cafe37
brcmfmac: disable command decode in sdio_aos

AOS is a part of the SDIOD core that becomes active when the rest of
SDIOD is sleeping to keep SDIO bus alive responding to reduced set of
commands.

Transaction between AOS and SDIOD is not protected, and if cmd 52 is
received in AOS and in the middle of response state changed from AOS to
SDIOD, response is corrupted and it causes to SDIO Host controller to
hang.

Command decode for below chips are disabled in this commit:
 - 4339
 - 4345
 - 4354
 - 4373

Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Wright Feng <wright.feng@cypress.com>
Signed-off-by: Double Lo <double.lo@cypress.com>
Signed-off-by: Madhan Mohan R <madhanmohan.r@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c